Triple-regulation cock for low-pressure heating systems.



I. TGHERNIAKOPSKY. TRIPLE REGULATION 000K FOR LOW PRESSURE HEATING SYSTEMS.

APPLICATION FILED JULY 19,1911.

Patented Aug. 11, 1914.

lJull J/wenfor': 77 0 45 25 'i'HE NORRIS PETERS CO.. PHUIU-LITHO-. WASHINGTON,- D. C.

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ITZKO TCI-IERNIAKOFSKY, or time; FRANCE.

TRIPLE-REGULATION COCK FOR LOW-PRESSURE HEATING SYSTEMS.

To all whom it may concern:

Be it known that I, I'rzxo TGHERNIAKOF- SKY, a subject of the Czar of Russia, residing at Lille, France, have invented new and useful Improvements in Triple-Regulating Cocks forLow-Pressure Heating Systems, of which the following is a specification.

It is the object of my invention to provide a triple regulation cock for low pressure steam heating systems, which in comparison with the known regulating cocks for low pressure steam heating plants has the advantage of providing a direct passage without any change in the direction of flow of the heating medium which change as is known, causes lossesof energy and of heat and renders the primary adjustment difficult, andwhich known devices furthermore have the disadvantage that they never close perfectly tight because their vertical displacement requires the use of a cylindrical spigot whichcannot be ground sufiicientlyqto produce a permanent tight. closure.

As it is well known, the flow of steam is dependent on the difference of pressure in front of and at the rear of the cook or valve,

. 2'. e. of the pressurerof the steam and the counter-pressure in the radiator. Conse quently, this difference of pressure must be constant in order to maintain the flow of a certain qua-ntity of steam. However, the pressure in front of the cock will vary as soon as the other radiators are suitably adjusted and, the counterpressure varies, because its force in low pressuresystems is generally determined by the prevailing atmospheric pressure and its value frequently by the height of the barometer for the timebeing.

A primary-object of my invention is to provide a regulating cock which obviates all the above mentioned disadvantages and which presents all the advantages connected with theuse of a cock, as compared with those of a valve.

My improved regulating cock substantially consist of a customary through-way cock having a special, throttling member, preferably formed as a disk arranged in thespigot, and having a freely axially displaceable throttling member, loaded if desired, and arranged in the tubular con nection leading to the'low pressure radiators, the latter throttling member being either under the influence of the free atmos- Specification of Letters Patent. 1

1 spindle 14c guided in the hub 8 Patented Aug. 11, 1914.

Application filed July 19, 1911. Serial No. 639,311.

phere or under the influence of the flow of the steam.

One illustrative embodiment of my inyention is represented by way of example in the accompanying drawing, wherein Figure 1 is avert-ical section, Fig.2 ahorizontal section through the spigot and box of the cock, and Fig. 3 is a top plan view. Referring to the drawing, 1 designates the well known having a branch 2 for the attachment of the low pressure steam pipe and the connecting branch 4, if de sired specially. connected with the box by means of the screw-cap: 3 leading to the radiator. The heating medium flows through the cock in the direction of the arrow 5 without varying its direction.

The free section of passage 6 in the box can be throttled by the spigot 7. The spigot 7 is not, as is otherwise customary, 1nserted with the tapered part of the cone downward in the box, but reversely in such manner that when the spigot is adjusted by means of the hand wheel 9 placed on the prolongated hub 8 of the same, the spigot is relieved by the pressure by hand, so that it is possible readily to turn it, while after it has been adjusted it is again pressed by the full force of the springs against its seat. A spiral spring isnot used as is customary, but preferably one or more diaphragm springs 10 which abut against the spigot and against a nut 12 screwed into a branch 11 of the box 1. Such diaphragm springs, are to be preferred, especially when a very small stroke is necessary, because a considerable change inthe pressure due to the springs is accompanied by a small deformation of the springs, and because the rotation of the spigot to and fro exercises no influence on the same.

The section of the passage through the spigot 7 alone can be throttled owing to the arrangement of a preferably circular, throttling disk 13 able to. be rotated by a of the spigot. This disk is preferably attached to the spindle by providing the lower end of the L latter with a slot and making it fork-shaped and pushing it over the disk 13 guided in the hole in the spigot. The disk is secured in theaxial direction of the bore of the cock by projections 15 stamped at the two sides of the spindle.

It is evident that by rotating the spindle 14 in the hub 8 the disk 13, which is also ro- Q m ai fieri.

tated correspondingly, throttles the sectio n of the spigot; a rotation of 90 sufficesfor throttling the full section down to zero.

The SPlDCllGlQciS rotated'in the huloS- by' inserting into asuitable incision 16 in the top end of the spindle a screw-driveriwhich preferably is provided with a scale corre-' sponding to the scale 17 of the hand wheel v9; movable over a pointer 18 secured on the box '1, in order'to'make the amount of'the adjustment readily visible. The pointer 18.

consequently enables. the expert to accurately effect the primary adjustment of the "cock by means of the disk 13 and also enables the person regulating the heat for the time being to correctly effect the adjustment or the spigot '7 The upper end'of the hub 8 is preferably closed by a'screw 19.

Obviously, this cock can also be employed inhot water systems.

(Constant difference of pressure in front of and behind the cock is possible owing to 5 the insertionof a special throttling member 2'3 freelyaxially displaceable under the influence of thepressure and counter-pressure. This throttling member 23 is secured in the connecting branch 4 on a spindle 22 which is freely "axially displaceable in the hubs 20 and 21, said member being formed at its upper end as a disk 24 and at its other or lower end as a cone 2 5 in such manner that the free section of passage 26 is more or less '3 throttledacc'ording to the position of the 111g "in the direction of the arrow '5,'sec'- the free atmosphereactingon the side of r the disk '24'turned away from the flow because the-radiator itself issubjected to the lpressure of the free atmosphere. The adjustmentof the throttling member. 28 thus depends on the relationbetween the pressure of flow, and of the free. atmosphere and, in a given case, on the weight of the load. If

the action of the free atmosphere varies, i. e.

the height of the barometer changes, the adjustment of the throttling member 23 also changes, 'that'is torsay When the throttling 'member issuitably dimensioned, the quantity of the flowingheating medium is autoondly, the load oit the weight 29 and, thirdly,

matically regatta aecbiaiil it at height of the barometer, t V V r I claim 1. A Lregu-lating icock-"lforlflowl pressure steam heating systemscomprising n'c'ombisage therethroulgh and a connecting branch ;nation with the box having a smooth g'pasconnected therewith, a spigot rotatable in said passage, a 'circular "throttling member movable 1n the spigot, "a spindle to} rotate said member, a double}con calithrottling member adapted tobe displaced-in axial 'disaidbranch, substantially as re'ction' within described. I

' 2. A regulating cock for. low pressure steam'heating systems comprising-1n combination'wlth the box havlng a sr'noothfpassage therethrough and azconneoting branch connected therewith, a-jsp'igot rotatable'in i said passage,'a circular throttling member movable iin'the spigot, a spindle to g-IOtZLtQ said member, provided with slot] in its lower] end, projections upon said circular throttling member entering-the slot-ofsaid f :f

spindle for connecting both parts. 7

regulating cock for low pressure V steam heatingsystems comprisingin combination with the boX having a smooth pas sage'therethrough and a connecting :branch :7 connectedjtherewith, a spigot: rotatable in V said passage, a circular throttling member movable in the spigot atthe outflow end, a

double conical throttling member adapted to be displaced in axial direction within said branch at the inflow end for automatiit c'ally regulatingthe'throttling .membersiin harmony with jthe changes in the pressure variatlons between steam and atmosphere '4. A iregulating c'ockr for low ,pressure steam'heating systems'comprlsing combination'wlth the box havlng a smoothfpas-g 1 i sage therethrough anda'gconnecting branch connected therewith, a spigot rotatable .111

said passage, a'circu'lar throttling member Q movable in the sp1got,ca spindle to' rotatev said member, .Ya double conical throttling memberadapted to be displacedin axial direction 'with said branchya weighted bell crank lever V weights for controlling the maximum pres sure and influencing said throttling member, substantially as described: 7 v

provided 'Wlth f adjustable In testimony'whereof- I aiiix my signature in presence of two witnesses V I. TGHERNIAKOFSKY;

VVitnesse'sz: 7 .DEANBQMASON," J

JOH Bassninx 1 Copies of this patent may be obtained for five cents each," by addressing the Commissionerofjatents, Wash1ngt01i,D.0. 7' Y a 

